TestSystem5.cs

using UnityEngine;
using Unity.Entities;
using Unity.Jobs;
using Unity.Collections;

public class TestSystem5 : JobComponentSystem
{
    protected override JobHandle OnUpdate(JobHandle inputDeps)
    {
        return new Process().ScheduleSingle(this, inputDeps);
    }

    struct Process : IJobProcessComponentData<SampleData4>
    {
        public void Execute([ReadOnly] ref SampleData4 data)
        {
            Debug.Log("sample5");
        }
    }
}

TestSystem6.cs

using UnityEngine;
using Unity.Entities;
using Unity.Jobs;
using Unity.Collections;

public class TestSystem6 : JobComponentSystem
{
    protected override JobHandle OnUpdate(JobHandle inputDeps)
    {
        return new Process().ScheduleSingle(this, inputDeps);
    }

    struct Process : IJobProcessComponentData<SampleData4>
    {
        public void Execute([ReadOnly] ref SampleData4 data)
        {
            Debug.Log("sample6");
        }
    }
}